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Silicon carbide materials will revolutionize semiconductor devices for military and commercial markets. The material's wide bandgap, high electric field breakdown, high thermal conductivity give SiC capabilities that far exceed those of silicon or gallium arsenide. Despite significant progress in silicon carbide development, fundamental defects--most prominently micropipes--persist. If SiC is to s ...

The properties of single-crystal silicon carbide are such that electronics devices from this material have demonstrated remarkable performance characteristics. Despite the material's promise, the material has not yet found acceptance in mainstream device markets because of the material's high cost, among other reasons. This Phase I SBIR proposes an SiC source powder with unique properties which wi ...

A novel technological approach was recently devised by Sumi Tech engineers to fabricate multilayer electronic components, which enables the manufacture of devices with very high volumetric efficiency and reliability. Inexpensive electrode materials such as copper, or aluminum are potential candidates, since the process takes place at relatively low ambient temperature (e.g., less than 400 C), thus ...

TETRA CORPORATION IS DEVELOPING INNOVATIVE ELECTROMAGNETIC LAUNCHER (EML) TECHNOLOGY FOR HYPERVELOCITY (2-10 KM/SEC), MODERATE MASS PROJECTILES (50 TO 100 GRAMS). THIS TECHNOLOGY UTILIZED A UNIQUE LINEAR INDUCTION COAXIAL COIL CONFIGURATION DRIVEN BY A NEAR-ARBITRARY WAVESHAPE REPETITIVE (200 HZ-10 KHZ) PULSED POWER SYSTEM. THIS TECHNIQUE REPRESENTS A BREAKTHROUGH IN EML TECHNOLOGY AND PROVIDES SI ...

CAPACITOR TECHNOLOGY IS A MAJOR DRIVER FOR THE SIZE AND COST OF MANY SPACE POWER CONDITIONING SYSTEMS. CURRENT TECHNOLOGY FOR HIGH VOLTAGE (>100V), HIGH FREQUENCY (HIGH REP RATE) CAPACITORS IS LIMITED TO AN ENERGY DENSITY LESS THAN 7500 J/M3. WE ARE PROPOSIING A REVOLUTIONARY CAPACITOR TECHNOLOGY WHICH PROMISES TO INCREASE CAPACITOR ENERGY DENSITIES BY AFACTOR OF MORE THAN 100. IN MANY APPLICATION ...

THE PROPOSED PROGRAM USES POLARIZATION REVERSAL ON FERROELECTRIC MATERIALS THAT YIELD CURRENT DENSITIES IN THE kA/cm2 RANGE. THE FAST CHANGE IN THE POLARIZATION VECTOR WITHIN THE MATERIAL RESULTS IN A TRANSITION THAT LIBERATES THE POLARIZATION INDUCED CHARGES (4 P) RESULTING IN A CURRENT PULSE LIMITED ONLY BY THE TRANSITION TIME AND SPACE CHARGE EFFECTS. THE PROPOSED PROGRAM WILL DEVELOP THE TECHN ...

The advanced technology described in this proposal promises to increase the performance of laboratory and, specifically, tabletop x-ray lasers by up to an order of magnitude. Such gains in performance coupled with compact technology will lead to the introduction of the world s first table-top, commercial x-ray laser. Tetra proposes to develop an advanced driver for the laboratory laser based upo ...

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